Our Four main products named High-Tech Products Four of our main products 4,4¡¯-Bis(diethoxyphosphono-methyl)-1,1¡¯-Biphenyl,Tere-phthalaldehyde, 4,4¡¯-Bis(chloromethyl)-1,1¡¯-biphenyl and Triethyl Phosphile has been named high-tech products,certificated by Heilongjiang province. |